html {
    -webkit-font-smoothing: antialiased;
    -ms-text-size-adjust:100%;
    -webkit-text-size-adjust: 100%; /* 2 */
    margin: 0;
    padding: 0; 
  }
  body,h1,h2,h3,h4,h5,h6,p,ul,ol,dd,form,span,samp,p,a{
      font-size: 12px;
      font-weight: normal;
      margin:0;
      font-family:  "Microsoft YaHei", Helvetica, STHeiTi,"Helvetica Neue","微软雅黑",SimSun,sans-serif;
  }
  
  html,body{
    background: white;
    min-height: 100%;
  }
  
  
  ul,ol{
      padding-left:0; 
      list-style-type:none;
  }
  
  li{display: inline-block;}
  i{font-style: normal;}
  
  a { 
    cursor: pointer;
    color:#333;
    text-decoration: none;
    /*消除ie10灰色背景*/
    background-color: transparent;
    /*消除火狐虚线*/
    outline: none;
  }
  
  img {
    max-width: 100%;
  /*  cursor: pointer;*/
    vertical-align: middle;
    border: 0 none;
  }
  
  body,button,input,select,textarea {
    font-size: 12px;
    font-family:  "Microsoft YaHei", Helvetica, STHeiTi,"Helvetica Neue","微软雅黑",SimSun,sans-serif;
    color:#3c3c3c;
    outline: none;
    resize: none;
  }
  button, input{
    /* 让 input 和 button 一样高 */
    line-height:normal;
  }
  
  figure{
    margin: 0;
    padding:0;
  }
  
  figure img{
   width: 100%;
  }
  
  button::-moz-focus-inner,
  input::-moz-focus-inner{
    padding:0;
    border:0;
  }
  input[type="button"],
  input[type="reset"],
  input[type="submit"] {
    -webkit-appearance: none;
  }
  a,button,input{
      -webkit-tap-highlight-color:rgba(0,0,0,0);
  }
  table {
    border-collapse: collapse;
    border-spacing: 0;
  }
  /* 统一上标和下标 */
  sub, sup{
    font-size:75%;
    line-height:0;
    position:relative;
  }
  :root sub, :root sup{
    vertical-align:baseline; /* for ie9 and other modern browsers */
  }
  sup{
    top:-0.5em;
  }
  sub{
    bottom:-0.25em;
  }
  strong {
    font-weight: normal;
  }
  mark {
    background: none;
  }
  /*
  input,button,select,textarea {
    -webkit-box-sizing: content-box;
       -moz-box-sizing: content-box;
            box-sizing: content-box;
  }
   */
  input[type="checkbox"],
  input[type="radio"] {
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
    padding: 0;
  }
  * {
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
  }
  *:before,
  *:after {
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
  }
  
  
  
  
  /*原子类*/
  .wrapper:before,
  .wrapper:after,
  .clearfix:before,
  .clearfix:after {
    display: table;
    content: "";
  }
  .wrapper:after,
  .clearfix:after {
    clear: both;
  }
  .wrapper,
  .clearfix {
    zoom: 1;
  }
  
  .Left{
    float: left;
  }
  
  .Right{
    float: right;
  }
  
  
  // html {height: 100%;}
  body {
    min-width: 320px; 
    max-width: 1920px; 
    line-height: 1.6; 
    margin: auto; 
  }
  
  
  .contain{max-width: 640px; margin: 0 auto; position: relative;}
  
  .fixWidth{
    width: 90%;
    margin: 0 auto;
    position: relative;
  }
  
  
  .contain {
    min-height: 400px;
    text-align: center;
  }
  
  .contain .demo div{
    display: block;
    width: 100%;
    height: 40px;
    border-radius: 5px;
    border: 1px solid #999;
    margin-bottom: 20px;
    text-align: center;
    font-size: 14px;
    line-height: 40px;
  }
  
  
  .whiteBG {
    background: white;
  }
  .fullHeight {
    height: 100%;
  }
  .guideView:before {
    display: none;
  }
  .center {
    text-align: center;
  }
  .blue {
    color: #1e83d3;
  }
  
  /* --------- nav ------------*/
  .nav {
    width: 100%;
    max-width: 640px;
    text-align: left;
    line-height: 45px;
    padding: 25px 0 35px;
  }
  
  .nav h1 {
    font-size: 2.5em;
    font-weight: bold;
  }


.mobileSelect {
    position: relative;
    z-index: 0;
    opacity: 0;
    visibility: hidden;
    -webkit-transition: opacity 0.4s, z-index 0.4s;
    transition: opacity 0.4s, z-index 0.4s;
  }
  .mobileSelect * {
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
  }
  .mobileSelect .grayLayer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: #eee;
    background: rgba(0, 0, 0, 0.7);
    z-index: 888;
    display: block;
  }
  .mobileSelect .content {
    width: 100%;
    display: block;
    position: fixed;
    z-index: 889;
    color: black;
    -webkit-transition: all 0.4s;
    transition: all 0.4s;
    bottom: -350px;
    left: 0;
    background: white;
  }
  .mobileSelect .content .fixWidth {
    width: 90%;
    margin: 0 auto;
    position: relative;
  }
  .mobileSelect .content .fixWidth:after {
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
  }
  .mobileSelect .content .btnBar {
    border-bottom: 1px solid #DCDCDC;
    font-size: 15px;
    height: 45px;
    position: relative;
    text-align: center;
    line-height: 45px;
  }
  .mobileSelect .content .btnBar .cancel,
  .mobileSelect .content .btnBar .ensure {
    height: 45px;
    width: 55px;
    cursor: pointer;
    position: absolute;
    top: 0;
  }
  .mobileSelect .content .btnBar .cancel {
    left: 0;
    color: #666;
  }
  .mobileSelect .content .btnBar .ensure {
    right: 0;
    color: #1e83d3;
  }
  .mobileSelect .content .btnBar .title {
    font-size: 15px;
    padding: 0 15%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .mobileSelect .content .panel:after {
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
  }
  .mobileSelect .content .panel .wheels {
    width: 100%;
    height: 200px;
    overflow: hidden;
  }
  .mobileSelect .content .panel .wheel {
    position: relative;
    z-index: 0;
    float: left;
    width: 50%;
    height: 200px;
    overflow: hidden;
    -webkit-transition: width 0.3s ease;
    transition: width 0.3s ease;
  }
  .mobileSelect .content .panel .wheel .selectContainer {
    display: block;
    text-align: center;
    -webkit-transition: -webkit-transform 0.18s ease-out;
    transition: -webkit-transform 0.18s ease-out;
    transition: transform 0.18s ease-out;
    transition: transform 0.18s ease-out, -webkit-transform 0.18s ease-out;
  }
  .mobileSelect .content .panel .wheel .selectContainer li {
    font-size: 15px;
    display: block;
    height: 40px;
    line-height: 40px;
    cursor: pointer;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .mobileSelect .content .panel .selectLine {
    height: 40px;
    width: 100%;
    position: absolute;
    top: 80px;
    pointer-events: none;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    border-top: 1px solid #DCDCDC;
    border-bottom: 1px solid #DCDCDC;
  }
  .mobileSelect .content .panel .shadowMask {
    position: absolute;
    top: 0;
    width: 100%;
    height: 200px;
    background: -webkit-gradient(linear, left top, left bottom, from(#ffffff), color-stop(rgba(255, 255, 255, 0)), to(#ffffff));
    background: -webkit-linear-gradient(top, #ffffff, rgba(255, 255, 255, 0), #ffffff);
    background: linear-gradient(to bottom, #ffffff, rgba(255, 255, 255, 0), #ffffff);
    opacity: 0.9;
    pointer-events: none;
  }
  .mobileSelect-show {
    opacity: 1;
    z-index: 10000;
    visibility: visible;
  }
  .mobileSelect-show .content {
    bottom: 0;
  }